Posted: Sun May 27, 2018 3:16 pm Post subject: Is the OVP 5 A CB supposed to trip when I switch off the

At 05:14 PM 5/27/2018, you wrote:

Quote:

Barry,

I think that is at odds with the explanation offered by Bob, et al. If I understand them correctly, the diode does not protect the contacts of the relay, but rather the contacts of the switch that controls the relay.

Correct. All Relays, contactors, solenoids, et. al.
will present a high voltage event across the windings
when the coil excitation current is removed. Here's
a couple of articles on the topic.

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